Should I always/ever/never initialize object fields to default values?

Question

Code styling question here.

I looked at this question which asks if the .NET CLR will really always initialize field values. (The answer is yes.) But it

Answer 1

I think that it makes sense to initialize the values if it clarifies the developer's intent.

In C#, there's no overhead as the values are all initialized anyway. In C/C++, uninitialized values will contain garbage/unknown values (whatever was in the memory location), so initialization was more important.